CN111835486B - Information transmission method and terminal - Google Patents

Information transmission method and terminal Download PDF

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Publication number
CN111835486B
CN111835486B CN201910736219.0A CN201910736219A CN111835486B CN 111835486 B CN111835486 B CN 111835486B CN 201910736219 A CN201910736219 A CN 201910736219A CN 111835486 B CN111835486 B CN 111835486B
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sci
pssch
dmrs
configuration
control information
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CN111835486A (en
Inventor
彭淑燕
邬华明
纪子超
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to CN201910736219.0A priority Critical patent/CN111835486B/en
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to EP20851489.3A priority patent/EP4012962A4/en
Priority to PCT/CN2020/102098 priority patent/WO2021027475A1/en
Priority to JP2022507697A priority patent/JP7340689B2/en
Priority to BR112022002400A priority patent/BR112022002400A2/en
Priority to KR1020227007842A priority patent/KR20220046630A/en
Publication of CN111835486A publication Critical patent/CN111835486A/en
Priority to US17/667,780 priority patent/US20220271892A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The invention provides an information transmission method and a terminal, and relates to the technical field of communication. The method comprises the following steps: transmitting side link control information SCI and target control information according to the resource mapping pattern; the resource mapping pattern is used for indicating the transmission resources of the physical side link shared channel PSSCH scheduled by the SCI and target control information, wherein the target control information is the next SCI or side link feedback control information SFCI.

Description

Information transmission method and terminal
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an information transmission method and a terminal.
Background
As shown in fig. 1, the current long term evolution (Long Term Evolution, LTE) system may support sidelink (sidelink, etc.) for direct data transmission between end User Equipments (UEs) without a network device.
The sidelink transmission is also mainly broadcast (multicast), multicast (multicast), and unicast (unicast) in several transmission modes. Unicast, as the name implies, is the transmission of one to one. Multicast is a one to management transmission. Broadcast is also a transmission of one to the management, but broadcast does not have the concept that UEs belong to the same group. The UE transmits sidelink control information (Sidelink Control Information, SCI) over a physical sidelink control channel (Physical Sidelink Control Channel, PSCCH), scheduling transmission of a physical sidelink shared channel (Physical Sidelink Shared Channel, PSCCH) to transmit data.
The design of the LTE sidelink is suitable for specific public safety matters (such as emergency communication in disaster places like fire places or earthquakes), or Internet of vehicles (vehicle to everything, V2X) communication and the like. The internet of vehicles communication includes various services such as basic security type communication, advanced (automatic) driving, formation, sensor expansion, and the like. Since LTE sidelink only supports broadcast communications, it is mainly used for basic security class communications, and other advanced V2X services with strict QoS requirements in terms of latency, reliability, etc. will be supported by the new air interface NR sidelink.
However, in current NR sidelink, unicast and multicast support hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) feedback mechanisms, channel state information (ChannelStateInformation, CSI) measurement, etc., but broadcast does not support HARQ feedback mechanisms. Resulting in a SCI that schedules unicast or multicast transmissions that is much larger than the SCI that schedules broadcast transmissions. If the size of the broadcast SCI is padded by 0 or 1 to the size of the unicast/multicast SCI, the performance of the broadcast SCI is degraded. If not padded, the complexity of the receiving end to detect SCIs of different sizes is higher.
In addition, in unicast and multicast, the terminal can be supported to report the measured CSI report to the UE at the transmitting end. The CSI report information is part of the sidelink feedback control information (Sidelink Feedback Control Information, SFCI), and how SFCI is currently not specifically designed in the channel.
Disclosure of Invention
The embodiment of the invention provides an information transmission method and a terminal, which are used for realizing the transmission of a second-stage SCI or SFCI of a two-stage SCI.
In order to solve the technical problems, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides an information transmission method, including:
transmitting side link control information SCI and target control information according to the resource mapping pattern; the resource mapping pattern is used for indicating transmission resources of the physical side link shared channel PSSCH scheduled by the SCI and target control information, wherein the target control information is the next SCI or side link feedback control information SFCI.
In a second aspect, an embodiment of the present invention further provides a terminal, including:
a transmission module for transmitting the side link control information SCI and the target control information according to the resource mapping pattern; the resource mapping pattern is used for indicating transmission resources of the physical side link shared channel PSSCH scheduled by the SCI and target control information, wherein the target control information is the next SCI or side link feedback control information SFCI.
In a third aspect, an embodiment of the present invention further provides a terminal, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program implements the steps of the information transmission method as described above when executed by the processor.
In a fourth aspect, embodiments of the present invention also provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the information transmission method as described above.
In this way, in the embodiment of the present invention, the SCI and the target control information (the next stage SCI or SFCI) are transmitted according to the resource mapping pattern (the transmission resource for indicating the PSSCH and the target control information scheduled by the SCI), so that the demodulation performance of the PSSCH and the capacity of the system are improved while the performance of the SCI or SFCI is ensured.
Drawings
Fig. 1 is a schematic diagram of data transmission supported by a terminal;
fig. 2 is a flow chart of an information transmission method according to an embodiment of the invention;
FIG. 3 is a schematic diagram of an application of the method according to the embodiment of the present invention;
FIG. 4 is a second schematic diagram of an embodiment of the method of the present invention;
FIG. 5 is a third embodiment of the method according to the present invention;
FIG. 6 is a fourth application diagram of the method according to the embodiment of the present invention;
FIG. 7 is a fifth application diagram of the method according to the embodiment of the present invention;
FIG. 8 is a sixth application of the method according to the embodiment of the present invention;
FIG. 9 is a seventh application diagram of the method according to the embodiment of the present invention;
FIG. 10 is a schematic diagram of an application of the method according to the embodiment of the present invention;
FIG. 11 is a diagram of a ninth application of the method according to the embodiment of the present invention;
FIG. 12 is a schematic diagram of an application of the method according to an embodiment of the present invention;
FIG. 13 is an eleventh application of the method according to the embodiment of the present invention;
FIG. 14 is a schematic diagram of an application of the method according to the embodiment of the present invention;
fig. 15 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 16 is a schematic structural diagram of a terminal according to another embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 2, an information transmission method according to an embodiment of the present invention includes:
step 201, transmitting side link control information SCI and target control information according to the resource mapping pattern; the resource mapping pattern is used for indicating transmission resources of the physical side link shared channel PSSCH scheduled by the SCI and target control information, wherein the target control information is the next SCI or side link feedback control information SFCI.
Through the steps, the terminal applying the method of the embodiment of the invention transmits SCI and target control information (the next SCI or SFCI) according to the resource mapping pattern, wherein the resource mapping pattern is used for indicating the PSSCH scheduled by the SCI and the transmission resource of the target control information, thereby realizing two-stage SCI or SFCI transmission.
The terminal applying the method of the embodiment of the invention can be a transmitting terminal or a receiving terminal.
It should be appreciated that in this embodiment, the SCI schedules the PSSCH, either by the one-level SCI or by a combination of two-level SCIs, i.e., the SCI and the next-level SCI. Optionally, in the resource mapping pattern, the target control information is mapped from a first position in a time domain and mapped from a second position in a frequency domain; wherein the first location and/or the second location is determined from at least one of the following information:
position of demodulation reference signal DMRS of PSSCH;
transmitting configuration parameters;
the number of layers of PSSCH;
configuration of the DMRS used;
configuration information of SFCI;
the type of traffic transmitted;
PSSCH allocated resources;
resource allocation of SCI.
The location of the DMRS of the PSSCH is:
the position of the Nth DMRS or the Nth DMRS set of the PSSCH, wherein N is an integer greater than or equal to 1; or alternatively
Position of pre-DMRS in PSSCH.
Wherein the transmission configuration parameters include: at least one of layer number, load and code rate.
For mapping of the next SCI, the transmission configuration parameter corresponds to at least one of the layer number, load and code rate of the next SCI; for mapping of SFCI, the transmission configuration parameter is at least one of layer number, load and code rate of SFCI.
Wherein, the configuration of the DMRS used includes: at least one of a type, a number of symbols, and a multiplexing scheme of DMRS.
Here, the DMRS used refers to a DMRS used for demodulation of target control information (the next-level SCI or SFCI). Multiplexing includes, but is not limited to, code division multiplexing CDM and frequency division multiplexing FDM. The type of DMRS may be type 1 or type 2, and the number of symbols may be 1 symbol or 2 symbols.
Wherein, the configuration information of the SFCI includes: whether SFCI is carried;
if the SFCI is carried, the SFCI configuration information further includes: transmission resources of the SFCI and/or information size carried by the SFCI.
Here, whether SFCI is carried may be explicitly indicated by specific information or may be indicated implicitly. There are various specific implicit ways, for example, nbit indicates the transmission resource or information size of SFCI, if all 0 (one code point indicates), i.e. it indicates that SFCI is not carried; if not, the indication carries SFCI, and the indication information corresponds to transmission resource of SFCI.
Wherein the transmitted service types include: multicast, unicast, or broadcast.
Wherein, the resources allocated by the PSSCH include: the PSSCH allocated frequency domain resources and/or the PSSCH allocated time domain resources.
Here, the frequency domain resources allocated by the PSSCH may be bandwidths, physical resource blocks PRBs, or subchannels. The time domain resources allocated by the PSSCH may be symbols, slots, subframes, or frames.
Optionally, the location of the DMRS of the PSSCH is SCI indication, terminal radio resource control RRC configuration, protocol predefining, network downlink control information DCI configuration, network RRC configuration or network pre-configuration;
the transmission configuration parameter is SCI indication, terminal RRC configuration, protocol pre-definition, network DCI configuration, network RRC configuration or network pre-configuration;
the layer number of the PSSCH is SCI indication, terminal RRC configuration, protocol predefining, network DCI configuration, network RRC configuration or network pre-configuration;
the configuration of the DMRS used is SCI indication, terminal RRC configuration, protocol predefining, network DCI configuration, network RRC configuration or network pre-configuration;
the configuration information of the SFCI is SCI indication, terminal RRC configuration, protocol predefining, network DCI configuration, network RRC configuration or network predefining;
the transmitted service type is SCI indication, terminal RRC configuration, protocol predefining, network DCI configuration, network RRC configuration or network pre-configuration;
The PSSCH allocated resources are SCI indication, terminal RRC configuration, protocol predefining, network DCI configuration, network RRC configuration or network pre-configuration.
Thus, the information for determining the first location and/or the second location may be SCI indication, terminal radio resource control RRC configuration, protocol predefined, network downlink control information DCI configuration, network RRC configuration or network pre-configuration, in addition to the resource configuration of SCI.
In addition, the transmission of the target control information (the next-stage SCI or SFCI) is not limited to a single layer, and thus, alternatively, in the resource mapping pattern, the target control information on a target layer is mapped from a first location in the time domain and mapped from a second location in the frequency domain, wherein the target layer is a single layer or multiple layers.
Here, in the resource mapping pattern, the next-stage SCI or SFCI is mapped on the target layer, and the corresponding single-layer or multi-layer transmission is completed.
Wherein the target layer is predefined or indicated by the SCI.
Of course, the target layer may also be DCI indicated or preconfigured or network configured. Specifically, the SCI indicates the target layer by indicating the layer number and/or layer identification (layer index) of the next SCI or SFCI mapping in the SCI.
Also, optionally, the number of layers of the target layer is related to the number of layers of the PSSCH or the physical side link control channel PSCCH by a predefined or indicated by the SCI.
For example, the number of layers in the SCI indicates that the number of layers of the target layer is the same as the number of layers of the PSSCH, or the number of layers of the target layer is predefined to be one.
Of course, in the resource mapping pattern, the mapping of the target control information may be selected to be mapped in a frequency domain-preferred or in a time domain-preferred manner.
Optionally, in the resource mapping pattern,
the target control information is mapped from an N-th DMRS or an N-th DMRS set of the PSSCH or an L-th symbol after the symbol of the pre-arranged DMRS or the symbol of the pre-arranged DMRS in the time domain, and is mapped from an M-th PRB in Physical Resource Blocks (PRBs) allocated by the PSSCH in the frequency domain; wherein M is an integer greater than or equal to 1, and L is an integer greater than or equal to 1.
Thus, the first position is the symbol where the nth DMRS of the PSSCH is located or the L symbol after the located symbol; or, the symbol of the nth DMRS set or the L symbol after the symbol; or, the symbol in which the pre-DMRS is located or the L-th symbol after the located symbol. The second position is the mth PRB among the PRBs allocated for the PSSCH. In this way, in the time domain of the target layer, the target control information is mapped from the nth DMRS or the nth DMRS set or the symbol where the preamble DMRS is located; or, mapping is started from the nth DMRS or the nth DMRS set or the L th symbol after the symbol where the preamble type DMRS is located. On the frequency domain of the target layer, mapping starts from the M-th PRB among PRBs allocated from the PSSCH.
Wherein, the value of M can be the highest PRB or the lowest PRB in PRBs allocated by PSSCH; the value of M may also be an edge PRB (highest PRB or lowest PRB in the region) of a target frequency domain region, which is determined based on the frequency domain resource size to be occupied by the next-stage SCI or SFCI, for example, the next-stage SCI or SFCI needs to occupy 50 PRBs in the frequency domain, and the target frequency domain region is the middle 50 PRBs of 100 PRBs allocated by the PSSCH (center of the PSSCH allocation bandwidth).
Optionally, in the resource mapping pattern, the target control information is mapped from a P-th symbol after the SCI in a time domain and from a Q-th PRB of the SCI in a frequency domain; wherein Q is an integer greater than or equal to 1 and P is an integer greater than or equal to 1.
Here, the first position is the P-th symbol after SCI, and the second position is the Q-th PRB of SCI. In the time domain of the target layer, the next stage SCI or SFCI starts mapping from the P-th symbol after SCI. On the frequency domain of the target layer, mapping starts from the Q-th PRB of SCI.
Optionally, in the resource mapping pattern, the target control information starts mapping from a first available symbol allocated from the PSSCH or a first available symbol not carrying the DMRS in a time domain.
Here, the first position is a first available symbol allocated by the PSSCH or a first available symbol not carrying the DMRS, and the target control information is mapped from the first available symbol allocated by the PSSCH or the first available symbol not carrying the DMRS in the time domain of the target layer. At this time, the second position may be an mth PRB among PRBs allocated by the PSSCH. The value of M is as described above and will not be described in detail herein.
In addition, during the mapping process of the next SCI in the two-stage SCI, since there may be transmission of SFCI, optionally, in the resource mapping pattern, in the case of carrying SFCI, the mapping of the next SCI may perform rate matching or puncturing on the location of SFCI.
For example, SFCI is configured, and the network configuration reserves SFCI resources, then rate matching is performed on reserved SFCI resources when the next stage SCI maps. Of course, the SFCI may be punctured at the next SCI mapping.
It should also be appreciated that in unicast and multicast, measurement reporting may be required by the terminal, so optionally, in case the traffic type of the transmission is multicast or unicast, the mapping of the next-stage SCI in the resource mapping pattern may perform rate matching or puncturing on the SFCI position.
For broadcast transmissions, the next stage SCI or SFCI may not be mapped.
It should also be appreciated that in this embodiment, optionally, the target control information is correspondingly configured with one or more DMRS configurations;
when the target control information correspondingly sets the configurations of multiple DMRSs, determining the configurations of the used DMRSs through predefining or the SCI.
The configuration of the DMRS for demodulating the target control information may be flexibly set, and may be one type or may be multiple types. In order to make demodulation more explicit, when having configurations of multiple DMRS, the configuration of the DMRS to be used may be determined through a predefined or SCI indication or network through RRC indication or network through DCI indication or terminal through RRC indication, so that demodulation of the target control information is performed in the determined configuration of DMRS.
The configuration of the DMRS used by the target control information is the same as the configuration of the DMRS of the PSSCH through predefining or the SCI indication.
In this way, the configuration of the DMRS indicated by the predefined or SCI may be specific information of the configuration of the DMRS, or may directly indicate the configuration of the DMRS using the PSSCH.
The configuration of the DMRS used by the target control information is the same as that of the DMRS of the PSSCH, that is, the target control information shares the configuration of the DMRS of the PSSCH. For example, the target control information multiplexes the first DMRS or front-loaded DMRS of the PSSCH or the first DMRS set; or, the target control information multiplexes its DMRS overlapping with the PSSCH; or, the time domain density of the DMRS used by the target control information is the same as that of the DMRS of the PSSCH.
Optionally, the SCI or the next-level SCI indicates a configuration of DMRS of the PSSCH and/or a number of layers of the PSSCH.
Thus, the DMRS configuration of the PSSCH and/or the number of layers of the PSSCH may be known through the SCI, or through the next-stage SCI.
In this embodiment, optionally, the ratio of the energy EPRE of the unit resource element of the target control information to the EPRE of the DMRS used is determined according to at least one of the following information:
the type of DMRS used;
multiplexing mode of the used DMRS;
the number of code division multiplexing CDM groups of DMRS used;
the number of layers of the target control information;
the number of layers of PSSCH;
time-frequency resource location of PSSCH;
the mapping mode of the data on the PSSCH.
When the ratio beta of the EPRE of the target control information to the EPRE of the DMRS used is related to the multiplexing mode of the DMRS used:
a) If the DMRS used is the multiplexing mode of FDM, beta is 0dB (i.e., EPRE of the target control information is equal to EPRE of the DMRS used).
b) If the DMRS used are CDM multiplexing, beta is 3dB (i.e., the EPRE of the target control information is twice the EPRE of the DMRS used), or beta is 4.77dB (i.e., the EPRE of the target control information is three times the EPRE of the DMRS).
When the ratio beta of the EPRE of the target control information to the EPRE of the DMRS used is related to the multiplexing mode of the DMRS used, the number of layers of the target control information and the number of layers of the PSSCH:
a) If the multiplexing mode of the used DMRS is FDM, the layer number of the next SCI is equal to that of the PSSCH, and the EPRE of the target control information is half of that of the used DMRS.
b) If the multiplexing mode of the used DMRS is FDM, the layer number of the next SCI is smaller than that of the PSSCH, and the EPRE of the target control information is equal to that of the used DMRS.
c) If the multiplexing mode of the used DMRS is CDM, the number of layers of the next-stage SCI is equal to that of the PSSCH, and the EPRE of the target control information is equal to that of the used DMRS.
d) If the multiplexing mode of the DMRS is CDM and the number of layers of the next-stage SCI is smaller than that of the PSSCH, the EPRE of the target control information is twice that of the DMRS.
When the ratio beta of the EPRE of the target control information to the EPRE of the DMRS used is related to the multiplexing mode of the DMRS used, the layer number of the target control information, the layer number of the PSSCH and the mapping mode of the data on the PSSCH:
a) If the multiplexing mode of the used DMRS is FDM, the layer number of the next SCI is smaller than that of the PSSCH, and the data of the PSSCH carries out rate matching on the resource of the target control information, the EPRE of the target control information is equal to that of the used DMRS.
b) If the multiplexing mode of the used DMRS is FDM, the layer number of the next SCI is smaller than that of the PSSCH, and the PSSCH data perforates the resources of the target control information, the EPRE of the target control information is half of the EPRE of the used DMRS.
c) If the multiplexing mode of the DMRS is CDM, the number of layers of the next-stage SCI is smaller than that of the PSSCH, and the data of the PSSCH performs rate matching on the resource of the target control information, the EPRE of the target control information is twice that of the DMRS.
d) If the multiplexing mode of the used DMRS is CDM, the layer number of the next SCI is smaller than that of the PSSCH, and the PSSCH data perforates the resources of the target control information, the EPRE of the target control information is equal to that of the used DMRS.
The application of the method of the embodiment of the present invention will be described below with reference to the specific scenario in which two-stage SCI jointly schedule PSSCH, with SCI being denoted as first SCI and the next-stage SCI being denoted as second SCI:
the first scenario, the protocol predefines the time domain resources of the first SCI as second, three symbols. The first SCI maps on the allocated available resources in a time-domain prioritized manner starting from the second symbol. The pattern (pattern) of DMRS of the protocol predefined/network configuration PSSCH is a configuration of 1 symbol DMRS, type 1 (type 1). The DMRS as used by the second SCI is the first DMRS of the PSSCH.
Upon determining that the first location is the next symbol of the first DMRS configured for the PSSCH, the second SCI begins mapping at the next symbol of the first DMRS configured for the PSSCH. And mapped on a pre-defined/network pre-configured associated DMRS port/PSSCH layer (e.g., layer one).
a) If a single port transmission is shown in fig. 3, the DMRS of the PSSCH is a comb 2 mapping. The data on PSSCH is mapped from the symbol of the PSSCH where the first DMRS is located, and the position of the second SCI is rate matched. The ratio beta of EPRE of the second SCI to DMRS of PSSCH is 0dB.
b) If the two-port transmission is as shown in fig. 4 or fig. 5, and the two-port DMRS of the PSSCH is mapped by FDM.
The PSSCH employs rate matching/puncturing (see FIG. 4) of the time-frequency domain resources of the second SCI. That is, if the second SCI is only transmitted in a single layer, both layers of PSSCH do not map data of the PSSCH on the time-frequency domain resource (i.e., RE) corresponding to the SCI. In this example, the second SCI maps only on the 5 th symbol of layer one, and neither layer one nor layer two maps PSSCH data on the 5 th symbol. The ratio beta of EPRE of the second SCI to DMRS of PSSCH is 0dB.
Alternatively, the PSSCH is rate matched/punctured in the time-frequency domain of the second SCI mapped layer (as in fig. 5). That is, if the second SCI is only transmitted in a single layer, the second SCI and the PSSCH are encoded, then bit interleaved and/or concatenated, and modulated, etc., to map the modulated information to two layers, so that the second SCI is mapped on an associated certain PSSCH layer (layer one)/DMRS port. In this example, the second SCI maps only on the 5 th symbol of layer one, and there is data mapping PSSCH on the 5 th symbol of layer two. The EPRE of the second SCI is half of the EPRE of the DMRS of the PSSCH. Of course, based on the load size, the second SCI may be mapped on the 5 th symbol, may occupy only part of the resources, and may need to be mapped to the 6 th symbol or more, which is not described herein.
In this scenario, the design rule ensures that the DMRS power of PSSCH DMRS port 1 used by the receiving side terminal to demodulate the second SCI is independent of the number of layers of the PSSCH, and the symbol position of the second-stage SCI is also independent of the number of layers of the PSSCH, so that the configuration of the DMRS of the PSSCH can be carried in the second SCI.
The receiving terminal detects the second SCI from the fifth symbol at the port PSSCH DMRS port 1, demodulates the second SCI by using the first DMRS to obtain the configuration of the DMRS of the PSSCH and/or the PSSCH layer number, and demodulates the PSSCH according to the configuration of the DMRS of the PSSCH and the predefined configuration.
Scene two, network pre-configures the time domain resource of the first SCI as the second, three symbols. The first SCI maps on the allocated available resources in a time-domain prioritized manner starting with symbol 2. The pattern (pattern) of DMRS of the protocol predefined/network configuration PSSCH is a configuration of 1 symbol DMRS, type 1 (type 1). The configuration of PSSCH DMRS and/or the number of layers of the PSSCH are indicated in the first SCI. The DMRS used by the second SCI is the first DMRS of the PSSCH.
When the symbol where the first DMRS configured for the PSSCH is located at the first position is determined, the second SCI starts mapping at the symbol where the first DMRS configured for the PSSCH is located. And mapped on a predefined/network preconfigured associated DMRS port/PSSCH layer (e.g., layer one).
a) If a single port transmission is shown in fig. 6, the DMRS of the PSSCH is a comb 2 mapping. The PSSCH starts transmitting from the next symbol of the symbol where the first DMRS of the PSSCH is located, and rate-matches or punctures the second SCI. The EPRE ratio beta of the EPRE of the second SCI to the EPRE of the DMRS of the PSSCH is 0dB.
b) If the two-port transmission is shown in fig. 7 or 8, and the two-port DMRS of the PSSCH is multiplexed by CDM.
The pssch uses rate matching/puncturing (fig. 7) for the time-frequency domain resources of the second SCI. That is, the second SCI transmits only in a single layer, and no data of the PSSCH is mapped on the time-frequency domain resources corresponding to both PSSCHs. In this example, the second SCI maps only on the 4 th and 5 th symbols of layer one, and neither the 4 th nor 5 th symbols of layer one nor layer two map data of the PSSCH. The ratio beta of EPRE of the second SCI to DMRS of PSSCH is 3dB.
Alternatively, the PSSCH is rate matched/punctured in the time-frequency domain of the second SCI mapped layer (as in fig. 8). That is, the second SCI is only transmitted in a single layer, after encoding the second SCI and the PSSCH, bit interleaving and/or concatenation is performed, and then modulated, etc., the modulated information is mapped to two layers, such that the second SCI is mapped on the associated PSSCH layer (layer one)/DMRS port. In this example, the second SCI maps only the 4 th and 5 th symbols of layer one, maps data of the PSSCH on the 5 th symbol of layer two, and maps data of the PSSCH on the 4 th and 5 th symbols of layer two. The ratio beta of the EPRE of the second SCI to the EPRE of the DMRS of the PSSCH is 0dB.
In this scenario, the DMRS power of PSSCH DMRS port 1 used by the receiving terminal to demodulate the second SCI is related to the number of layers of the PSSCH, and before demodulating the second SCI, the number of layers of the PSSCH and/or the DMRS configuration may be obtained from the first SCI, so as to determine the DMRS power.
The receiving side terminal receives and demodulates the first SCI, and obtains the configuration of the DMRS of the PSSCH and/or the layer number of the PSSCH. And then acquiring the power and the pattern of the DMRS of the layer one. The second SCI is detected beginning at the 4 th symbol and demodulated according to the layer one DMRS. And further acquiring the scheduling information of the extra PSSCH, and demodulating the PSSCH.
Scene three, the network pre-configures the time domain resource of the first SCI as the second, three symbols. The first SCI maps on the allocated available resources in a time-domain prioritized manner starting with symbol 2. The DMRS configuration of the PSSCH in the first SCI adopts a CDM multiplexing method. The second SCI is predefined as a transport at the PSSCH layer, and mapped layers and ports. The pattern (pattern) of DMRS of the protocol predefined/network configuration PSSCH is a configuration of 1 symbol DMRS, type 1 (type 1). The DMRS used by the second SCI is configured identically to the DMRS of the PSSCH. The DMRS as used by the second SCI is the first DMRS of the PSSCH.
When determining that the first location is the symbol where the first DMRS configured for the PSSCH is located, the second SCI starts mapping at the symbol where the first DMRS configured for the PSSCH is located, and maps on a predefined DMRS port/PSSCH layer (e.g., layer one). The EPRE ratio beta of the EPRE of the second SCI to the EPRE of the DMRS of the PSSCH is 0Db, as shown in fig. 6.
The receiving terminal receives and demodulates the first SCI, acquires the DMRS configuration of the PSSCH, and obtains PSSCH DMRS as CDM multiplexing. The receiving side terminal receives the second SCI on layer one corresponding to the PSSCH DMRS port and detects the second SCI from the 4 th symbol.
If the DMRS of the PSSCH is configured in the first SCI, an FDM multiplexing method is adopted. Upon determining that the first location is the next symbol of the first DMRS configured for the PSSCH, the second SCI begins mapping on the next symbol of the first DMRS configured for the PSSCH, mapping on a predefined DMRS port/PSSCH layer (e.g., layer one). The EPRE ratio beta of the EPRE of the second SCI to the EPRE of the DMRS of the PSSCH is 0dB, as shown in fig. 4. At this time, the receiving terminal receives and demodulates the first SCI, obtains the configuration of the DMRS of the PSSCH, and obtains PSSCH DMRS as FDM multiplexing. The receiving-side terminal receives the second SCI on layer one corresponding to the PSSCH DMRS port and detects the second SCI from the fifth symbol.
In this scenario, the DMRS is flexibly configured, and may be an FDM or CDM multiplexing manner, and the UE applies a corresponding mapping rule to the second SCI according to the multiplexing manner.
Scene four, the network pre-configures the time domain resource of the first SCI as the second, three symbols. The first SCI maps on the allocated available resources in a time-domain prioritized manner starting with symbol 2. The DMRS in the first SCI is configured with a PSSCH, which is a two-layer transmission. The second SCI mapping layer number is predefined to be the same as the PSSCH layer number (i.e., the second SCI is a two layer transmission) or the first SCI indicates the second SCI is a two layer transmission. The pattern (pattern) of DMRS of the protocol predefined/network configuration PSSCH is a configuration of 1 symbol DMRS, type 1 (type 1). The DMRS used by the second SCI is configured identically to the DMRS of the PSSCH. The DMRS as used by the second SCI is the first DMRS of the PSSCH.
When the first position is determined to be the symbol or the next symbol of the first DMRS configured by the PSSCH, the second SCI starts mapping in the symbol or the next symbol of the first DMRS configured by the PSSCH.
a) If the DMRS of the PSSCH is CDM multiplexed as shown in fig. 9, the second SCI starts mapping on the symbol where the first DMRS of the PSSCH configuration is located, and maps on both layers of the PSSCH. That is, after the second SCI and the PSSCH are encoded, bit interleaving and/or concatenation is performed, and then modulated, etc., the modulated information is mapped on two layers, so that the second SCI is mapped on the corresponding positions (4 th and 5 th symbols of layer one and layer two) of the two layers of the PSSCH. The ratio beta of EPRE of the second SCI to DMRS of PSSCH is 0dB.
b) If the DMRS of the PSSCH is FDM multiplexed as shown in fig. 10, the second SCI starts mapping on the next symbol of the first DMRS configured in the PSSCH and maps on both layers of the PSSCH. That is, the second SCI and the PSSCH are encoded, then bit interleaved and/or concatenated, and modulated, etc., to map the modulated information to two layers, such that the second SCI is mapped to the corresponding positions (5 th symbol of layer one, layer two) of the two layers of the PSSCH. The ratio beta of EPRE of the second SCI to DMRS of PSSCH is-3 dB.
Scene five, the network pre-configures the time domain resource of the first SCI as the second, three symbols. The first SCI maps on the allocated available resources in a time-domain prioritized manner starting with symbol 2.
Upon determining that the first location is the 1 st symbol after the first SCI, the second SCI starts mapping from the 4 th symbol (the 1 st symbol after the first SCI). If the transmission is single-ended as in fig. 11, the EPRE ratio beta of the EPRE of the second SCI to the EPRE of the DMRS of the PSCCH is 0dB. If fig. 12 is a two-port transmission, the EPRE ratio beta of the EPRE of the second SCI to the EPRE of the DMRS of the PSCCH is 3dB.
The receiving side terminal demodulates the second SCI by adopting the DMRS of the first SCI.
Scene six, the network pre-configures the time domain resource of the first SCI as the second, three symbols. The first SCI maps on the allocated available resources in a time-domain prioritized manner starting from the second symbol. The number of layers in the first SCI indicates the second SCI is one, or the number of layers in the first SCI indicates the PSSCH is one, and the second SCI is the same as the number of layers in the PSSCH (i.e., the number of layers in the second SCI is one). The configuration of the DMRS used by the second SCI may be independently defined, e.g., DMRS used by the second SCI is comb 4.
Upon determining that the first location is the 1 st symbol after the first SCI, the second SCI maps at layer one starting with the 4 th symbol (the 1 st symbol after the first SCI), as shown in fig. 13.
The receiving terminal demodulates the first SCI to obtain the layer number of the second SCI. And demodulating the second SCI according to the second SCI layer number and the independently defined DMRS.
If the number of layers of the second SCI is two in the first SCI, or the number of layers of the PSSCH is two in the first SCI, the number of layers of the second SCI is the same as the number of layers of the PSSCH (i.e., the number of layers of the second SCI is two). Upon determining that the first location is the 1 st symbol after the first SCI, the second SCI is mapped on two layers starting with the 4 th symbol (the 1 st symbol after the first SCI), as shown in fig. 14. The receiving terminal demodulates the first SCI to obtain the layer number of the second SCI. And demodulating the second SCI according to the second SCI layer number and the independently defined DMRS.
Of course, the above scenario is described with two-stage SCI scheduling PSSCH, but the case of SFCI transmission when one-stage SCI schedules PSSCH is equally applicable, and will not be described in detail.
In summary, the method of the embodiment of the present invention transmits the SCI and the target control information according to the resource mapping pattern (the transmission resource for indicating the PSSCH scheduled by the SCI and the target control information), so as to achieve the purpose of transmitting the target control information to the terminal of the opposite terminal, and improve the demodulation performance of the PSSCH and the capacity of the system while ensuring the performance of the SCI or the SFCI.
Fig. 15 is a block diagram of a terminal according to an embodiment of the present invention. The terminal 1500 shown in fig. 15 includes a transmission module 1510.
A transmission module 1510 for transmitting the side link control information SCI and the target control information according to the resource mapping pattern; the resource mapping pattern is used for indicating transmission resources of the physical side link shared channel PSSCH scheduled by the SCI and target control information, wherein the target control information is the next SCI or side link feedback control information SFCI.
Optionally, in the resource mapping pattern, the target control information is mapped from a first position in a time domain and mapped from a second position in a frequency domain; wherein,,
the first location and/or the second location is determined from at least one of the following information:
position of demodulation reference signal DMRS of PSSCH;
transmitting configuration parameters;
the number of layers of PSSCH;
configuration of the DMRS used;
configuration information of SFCI;
the type of traffic transmitted;
PSSCH allocated resources;
resource allocation of SCI.
Optionally, the location of the DMRS of the PSSCH is:
the position of the Nth DMRS or the Nth DMRS set of the PSSCH, wherein N is an integer greater than or equal to 1; or alternatively
Position of pre-DMRS in PSSCH.
Optionally, the transmission configuration parameters include: at least one of layer number, load and code rate.
Optionally, the configuration of the DMRS used includes: at least one of a type, a number of symbols, and a multiplexing scheme of DMRS.
Optionally, the configuration information of the SFCI includes: whether SFCI is carried;
if the SFCI is carried, the SFCI configuration information further includes: transmission resources of the SFCI and/or information size carried by the SFCI.
Optionally, the service types of the transmission include: multicast, unicast, or broadcast.
Optionally, the resources allocated by the PSSCH include: the PSSCH allocated frequency domain resources and/or the PSSCH allocated time domain resources.
Optionally, in the resource mapping pattern, the target control information on a target layer is mapped from a first position in a time domain and mapped from a second position in a frequency domain, where the target layer is a single layer or multiple layers.
Optionally, the target layer is predefined or indicated by the SCI.
Optionally, the number of layers of the target layer is related to the number of layers of the PSSCH or the physical side link control channel PSCCH by a predefined or the SCI indication.
Optionally, in the resource mapping pattern, the target control information starts to map from an nth DMRS or an nth DMRS set of the PSSCH or a symbol where a preamble type DMRS is located or an L-th symbol after the located symbol in a time domain, and starts to map from an mth PRB in physical resource blocks PRB allocated from the PSSCH in a frequency domain; wherein the Mth PRB is the highest PRB or the lowest PRB or the edge PRB of the target frequency domain region, M is an integer greater than or equal to 1, and L is an integer greater than or equal to 1.
Optionally, in the resource mapping pattern, the target control information is mapped from a P-th symbol after the SCI in a time domain and from a Q-th PRB of the SCI in a frequency domain; wherein Q is an integer greater than or equal to 1 and P is an integer greater than or equal to 1.
Optionally, in the resource mapping pattern, the target control information starts mapping from a first available symbol allocated from the PSSCH or a first available symbol not carrying the DMRS in a time domain.
Optionally, in the resource mapping pattern, in the case of carrying SFCI, the mapping of the next-stage SCI may rate match or puncture the SFCI position.
Optionally, in the case that the traffic type of the transmission is multicast or unicast, the mapping of the next-stage SCI in the resource mapping pattern may perform rate matching or puncturing on the SFCI position.
Optionally, the target control information is correspondingly provided with one or more configurations of DMRS;
when the target control information correspondingly sets the configurations of multiple DMRSs, determining the configurations of the used DMRSs through predefining or the SCI.
Optionally, the configuration of the DMRS used by the target control information is the same as the configuration of the DMRS of the PSSCH, either by predefining or the SCI indication.
Optionally, the SCI or the next-level SCI indicates a configuration of DMRS of the PSSCH and/or a number of layers of the PSSCH.
Optionally, a ratio of energy EPRE of a unit resource element of the target control information to EPRE of the DMRS used is determined according to at least one of the following information:
the type of DMRS used;
multiplexing mode of the used DMRS;
the number of code division multiplexing CDM groups of DMRS used;
the number of layers of the target control information;
the number of layers of PSSCH;
time-frequency resource location of PSSCH;
the mapping mode of the data on the PSSCH.
The terminal is a terminal to which the information transmission method of the above embodiment is applied, and the implementation manner of the information transmission method of the above embodiment is applicable to the terminal, so that the same technical effects can be achieved.
The terminal 1500 is capable of implementing the respective processes implemented by the terminal in the method embodiments of fig. 2 to 14, and will not be described herein again for the sake of avoiding repetition. The terminal of the embodiment of the invention can transmit the SCI and the target control information according to the resource mapping pattern (the transmission resource for indicating the PSSCH scheduled by the SCI and the target control information), thereby improving the demodulation performance of the PSSCH and the capacity of the system while ensuring the performance of the SCI or the SFCI.
Fig. 16 is a schematic diagram of a hardware architecture of a terminal implementing various embodiments of the present invention, and the terminal 1600 includes, but is not limited to: radio frequency unit 1601, network module 1602, audio output unit 1603, input unit 1604, sensor 1605, display unit 1606, user input unit 1607, interface unit 1608, memory 1609, processor 1610, and power supply 1611. It will be appreciated by those skilled in the art that the terminal structure shown in fig. 16 is not limiting of the terminal and that the terminal may include more or fewer components than shown, or may combine certain components, or a different arrangement of components. In the embodiment of the invention, the terminal comprises, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer and the like.
Wherein, the radio frequency unit 1601 is configured to transmit the side link control information SCI and the target control information according to a resource mapping pattern; the resource mapping pattern is used for indicating transmission resources of the physical side link shared channel PSSCH scheduled by the SCI and target control information, wherein the target control information is the next SCI or side link feedback control information SFCI.
It can be seen that the terminal transmits the SCI and the target control information (the next-stage SCI or SFCI) according to the resource mapping pattern (the transmission resource for indicating the PSSCH scheduled by the SCI and the target control information), so that the demodulation performance of the PSSCH and the capacity of the system are improved while the performance of the SCI or SFCI is ensured.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 1601 may be used for receiving and transmitting signals during a message or a call, specifically, receiving downlink data from a base station, and then processing the received downlink data by the processor 1610; and, the uplink data is transmitted to the base station. Generally, radio frequency unit 1601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 1601 may also communicate with a network and other devices through a wireless communication system.
The terminal provides wireless broadband internet access to the user, such as helping the user to send and receive e-mail, browse web pages, access streaming media, etc., through the network module 1602.
The audio output unit 1603 may convert audio data received by the radio frequency unit 1601 or the network module 1602 or stored in the memory 1609 into an audio signal and output as sound. Also, the audio output unit 1603 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a particular function performed by the terminal 1600. The audio output unit 1603 includes a speaker, a buzzer, a receiver, and the like.
The input unit 1604 is used for receiving audio or video signals. The input unit 1604 may include a graphics processor (Graphics Processing Unit, GPU) 16041 and a microphone 16042, the graphics processor 16041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frame may be displayed on the display unit 1606. The image frames processed by the graphics processor 16041 may be stored in memory 1609 (or other storage medium) or transmitted via the radio frequency unit 1601 or the network module 1602. Microphone 16042 may receive sound and be capable of processing such sound into audio data. The processed audio data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 1601 in the case of a telephone call mode.
Terminal 1600 can also include at least one sensor 1605, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 16061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 16061 and/or the backlight when the terminal 1600 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when the accelerometer sensor is stationary, and can be used for recognizing the terminal gesture (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; the sensor 1605 may further include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which are not described herein.
The display unit 1606 is used to display information input by a user or information provided to the user. The display unit 1606 may include a display panel 16061, and the display panel 16061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 1607 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 1607 includes a touch panel 16071 and other input devices 16072. The touch panel 16071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (such as operations of the user on the touch panel 16071 or thereabout using any suitable object or accessory such as a finger, stylus, or the like). The touch panel 16071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch azimuth of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends the touch point coordinates to the processor 1610, and receives and executes commands sent from the processor 1610. In addition, the touch panel 16071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 1607 may include other input devices 16072 in addition to the touch panel 16071. In particular, other input devices 16072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
Further, the touch panel 16071 may be overlaid on the display panel 16061, and when the touch panel 16071 detects a touch operation thereon or thereabout, the touch operation is transferred to the processor 1610 to determine the type of touch event, and then the processor 1610 provides a corresponding visual output on the display panel 16061 according to the type of touch event. Although in fig. 16, the touch panel 16071 and the display panel 16061 are two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 16071 and the display panel 16061 may be integrated to realize the input and output functions of the terminal, and the present invention is not limited thereto.
The interface unit 1608 is an interface to which an external device is connected to the terminal 1600. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. Interface unit 1608 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within terminal 1600 or may be used to transmit data between terminal 1600 and an external device.
Memory 1609 may be used to store software programs as well as various data. The memory 1609 may mainly include a storage program area that may store an operating system, application programs required for at least one function (such as a sound playing function, an image playing function, etc.), and a storage data area; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, memory 1609 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 1610 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by running or executing software programs and/or modules stored in the memory 1609, and calling data stored in the memory 1609, thereby performing overall monitoring of the terminal. Processor 1610 may include one or more processing units; preferably, processor 1610 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 1610.
Terminal 1600 can also include a power supply 1611 (e.g., a battery) for powering the various components, and preferably power supply 1611 can be logically connected to processor 1610 through a power management system that can perform functions such as managing charge, discharge, and power consumption.
In addition, the terminal 1600 includes some functional modules, which are not shown, and are not described herein.
Preferably, the embodiment of the present invention further provides a terminal, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program when executed by the processor implements each process of the above embodiment of the information transmission method, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein.
The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the processes of the above-described information transmission method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims (24)

1. An information transmission method, comprising:
transmitting side link control information SCI and target control information according to the resource mapping pattern; the resource mapping pattern is used for indicating transmission resources of a physical side link shared channel PSSCH scheduled by the SCI and target control information, wherein the target control information is a next SCI or side link feedback control information SFCI;
wherein,,
in the resource mapping pattern, the next-stage SCI is mapped from a first location in the time domain and mapped from a second location in the frequency domain, and the first location and/or the second location are/is determined according to at least one of the following information: PSSCH demodulation reference signal DMRS position, PSSCH allocated resources;
In the resource mapping pattern, the SFCI starts mapping from a first location in the time domain and starts mapping from a second location in the frequency domain, wherein the first location and/or the second location is determined according to at least one of the following information: the location of DMRS of PSSCH, the resource configuration of SCI.
2. The method according to claim 1, wherein the first location and/or the second location is further determined according to at least one of the following information:
transmitting configuration parameters;
the number of layers of PSSCH;
configuration of the DMRS used;
configuration information of SFCI;
the type of traffic transmitted.
3. The method of claim 1, wherein the location of the DMRS of the PSSCH is:
the position of the Nth DMRS or the Nth DMRS set of the PSSCH, wherein N is an integer greater than or equal to 1; or alternatively
Position of pre-DMRS in PSSCH.
4. The method of claim 2, wherein the transmission configuration parameters comprise: at least one of layer number, load and code rate.
5. The method of claim 2, wherein the configuration of the DMRS used comprises: at least one of a type, a number of symbols, and a multiplexing scheme of DMRS.
6. The method of claim 2, wherein the configuration information of the SFCI comprises: whether SFCI is carried;
If the SFCI is carried, the SFCI configuration information further includes: transmission resources of the SFCI and/or information size carried by the SFCI.
7. The method of claim 2, wherein the type of traffic transmitted comprises: multicast, unicast, or broadcast.
8. The method of claim 1, wherein the PSSCH allocated resources comprise: the PSSCH allocated frequency domain resources and/or the PSSCH allocated time domain resources.
9. The method of claim 2, wherein, in the resource mapping pattern,
the target control information on the target layer is mapped from a first position in the time domain and mapped from a second position in the frequency domain, wherein the target layer is a single layer or multiple layers.
10. The method of claim 9 wherein the target layer is predefined or indicated by the SCI.
11. The method of claim 10 wherein the number of layers of the target layer is related to the number of layers of a PSSCH or a physical side link control channel PSCCH by a predefined or the SCI indication.
12. The method of claim 2, wherein, in the resource mapping pattern,
The target control information is mapped from an N-th DMRS or an N-th DMRS set of the PSSCH or an L-th symbol after the symbol of the pre-arranged DMRS or the symbol of the pre-arranged DMRS in the time domain, and is mapped from an M-th PRB in Physical Resource Blocks (PRBs) allocated by the PSSCH in the frequency domain; wherein the Mth PRB is the highest PRB or the lowest PRB or the edge PRB of the target frequency domain region, M is an integer greater than or equal to 1, and L is an integer greater than or equal to 1.
13. The method of claim 2, wherein, in the resource mapping pattern,
the target control information is mapped from the P-th symbol after the SCI in the time domain and from the Q-th PRB of the SCI in the frequency domain; wherein Q is an integer greater than or equal to 1 and P is an integer greater than or equal to 1.
14. The method of claim 2, wherein, in the resource mapping pattern,
the target control information starts mapping from the first available symbol allocated from the PSSCH or the first available symbol not carrying the DMRS in the time domain.
15. The method of claim 2 wherein the mapping of the next-level SCI in the resource mapping pattern, if carrying SFCIs, rate matches or punctures SFCI locations.
16. The method of claim 2 wherein the mapping of the next SCI in the resource mapping pattern rate matches or punctures the SFCI locations in the case where the traffic type of the transmission is multicast or unicast.
17. The method of claim 1, wherein the target control information corresponds to a configuration of one or more DMRSs;
when the target control information correspondingly sets the configurations of multiple DMRSs, determining the configurations of the used DMRSs through predefining or the SCI.
18. The method of claim 1 wherein the configuration of the DMRS used by the target control information is the same as the configuration of the DMRS of the PSSCH, either by predefining or the SCI indication.
19. The method of claim 1 wherein the SCI or the next-level SCI indicates a configuration of DMRS of a PSSCH and/or a number of layers of the PSSCH.
20. The method of claim 1, wherein the ratio of the energy EPRE of the unit resource element of the target control information to the EPRE of the DMRS used is determined based on at least one of:
the type of DMRS used;
Multiplexing mode of the used DMRS;
the number of code division multiplexing CDM groups of DMRS used;
the number of layers of the target control information;
the number of layers of PSSCH;
time-frequency resource location of PSSCH;
the mapping mode of the data on the PSSCH.
21. The method of claim 2, wherein the step of determining the position of the substrate comprises,
the position of the DMRS of the PSSCH is SCI indication, terminal radio resource control RRC configuration, predefining, network downlink control information DCI configuration, network RRC configuration or network pre-configuration;
the transmission configuration parameter is SCI indication, terminal RRC configuration, predefined, network DCI configuration, network RRC configuration or network pre-configuration;
the layer number of the PSSCH is SCI indication, terminal RRC configuration, predefining, network DCI configuration, network RRC configuration or network pre-configuration;
the configuration of the DMRS used is SCI indication, terminal RRC configuration, predefined, network DCI configuration, network RRC configuration or network pre-configuration;
the configuration information of the SFCI is SCI indication, terminal RRC configuration, predefining, network DCI configuration, network RRC configuration or network pre-configuration;
the traffic type of the transmission is SCI indication, terminal RRC configuration, predefined, network DCI configuration, network RRC configuration or network pre-configuration;
The PSSCH allocated resources are SCI indication, terminal RRC configuration, predefined, network DCI configuration, network RRC configuration, or network pre-configuration.
22. A terminal, comprising:
a transmission module for transmitting the side link control information SCI and the target control information according to the resource mapping pattern; the resource mapping pattern is used for indicating transmission resources of a physical side link shared channel PSSCH scheduled by the SCI and target control information, wherein the target control information is a next SCI or side link feedback control information SFCI;
wherein,,
in the resource mapping pattern, the next-stage SCI is mapped from a first location in the time domain and mapped from a second location in the frequency domain, and the first location and/or the second location are/is determined according to at least one of the following information: PSSCH demodulation reference signal DMRS position, PSSCH allocated resources;
in the resource mapping pattern, the SFCI starts mapping from a first location in the time domain and starts mapping from a second location in the frequency domain, wherein the first location and/or the second location is determined according to at least one of the following information: the location of DMRS of PSSCH, the resource configuration of SCI.
23. A terminal comprising a processor, a memory and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the information transmission method according to any one of claims 1 to 21.
24. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the information transmission method according to any one of claims 1 to 21.
CN201910736219.0A 2019-08-09 2019-08-09 Information transmission method and terminal Active CN111835486B (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020204642A1 (en) * 2019-04-02 2020-10-08 엘지전자 주식회사 Method and device for transmitting pscch and pssch
US11991665B2 (en) * 2019-10-15 2024-05-21 Qualcomm Incorporated Mapping two-stage sidelink control with multi-layer sidelink data channel
CN114765511A (en) * 2021-01-15 2022-07-19 展讯通信（上海）有限公司 Method and device for transmitting secondary link of unlicensed spectrum and computer-readable storage medium
WO2023065324A1 (en) * 2021-10-22 2023-04-27 Oppo广东移动通信有限公司 Sidelink transmission resource indication method and apparatus, and device and storage medium
CN116981048A (en) * 2022-04-24 2023-10-31 维沃移动通信有限公司 Side link positioning processing method, side link positioning processing device, terminal and readable storage medium

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107210988A (en) * 2015-01-23 2017-09-26 Lg 电子株式会社 The method and apparatus for producing signal to apparatus of communication terminal by equipment in a wireless communication system
CN107926009A (en) * 2015-09-01 2018-04-17 株式会社Ntt都科摩 User apparatus and communication means
CN108632781A (en) * 2017-03-24 2018-10-09 北京三星通信技术研究有限公司 Vehicle is to the resource selection or reselecting method and user equipment in extraneous communicate
CN109075955A (en) * 2018-07-20 2018-12-21 北京小米移动软件有限公司 Method for sending information, device, terminal and storage medium
EP3450909A1 (en) * 2017-09-05 2019-03-06 Renishaw PLC Non-contact optical tool setting apparatus and method
CN109691146A (en) * 2018-11-29 2019-04-26 北京小米移动软件有限公司 Resource collision solution, device and storage medium

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106717091A (en) * 2014-09-04 2017-05-24 华为技术有限公司 System and method for communicating resource allocation for D2D
KR20170020145A (en) * 2015-08-13 2017-02-22 주식회사 아이티엘 Apparatus and method for transmitting control information in device to device communication based system
CN107333334B (en) * 2016-04-29 2020-01-31 普天信息技术有限公司 Configuration method and device for semi-persistent scheduling of sidelink
IL264602B (en) * 2016-08-10 2022-08-01 Idac Holdings Inc Method for channel state information reporting in massive antenna system
CN107733818A (en) * 2016-08-12 2018-02-23 中兴通讯股份有限公司 The data transmission method and device of end-to-end equipment
CN107889073B (en) * 2016-09-30 2022-05-24 北京三星通信技术研究有限公司 Method and equipment for determining transmission resources in V2X communication
KR102334627B1 (en) * 2017-02-06 2021-12-03 엘지전자 주식회사 Method and apparatus for receiving a signal through T-RPT in a wireless communication system
CN108633065B (en) * 2017-03-24 2023-12-22 北京三星通信技术研究有限公司 Data transmission method and corresponding user equipment
CN109121214B (en) * 2017-06-23 2023-11-24 北京三星通信技术研究有限公司 Resource selection method and equipment in V2X communication
CN109246659A (en) * 2017-06-15 2019-01-18 中兴通讯股份有限公司 A kind of communication control method, device and computer readable storage medium
CN109644094B (en) * 2017-08-04 2020-07-31 Oppo广东移动通信有限公司 Information processing method, communication device, and computer storage medium
US11291030B2 (en) * 2018-02-16 2022-03-29 Intel Corporation Sidelink control information for vehicle-to-vehicle communications

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107210988A (en) * 2015-01-23 2017-09-26 Lg 电子株式会社 The method and apparatus for producing signal to apparatus of communication terminal by equipment in a wireless communication system
CN107926009A (en) * 2015-09-01 2018-04-17 株式会社Ntt都科摩 User apparatus and communication means
CN108632781A (en) * 2017-03-24 2018-10-09 北京三星通信技术研究有限公司 Vehicle is to the resource selection or reselecting method and user equipment in extraneous communicate
EP3450909A1 (en) * 2017-09-05 2019-03-06 Renishaw PLC Non-contact optical tool setting apparatus and method
CN109075955A (en) * 2018-07-20 2018-12-21 北京小米移动软件有限公司 Method for sending information, device, terminal and storage medium
CN109691146A (en) * 2018-11-29 2019-04-26 北京小米移动软件有限公司 Resource collision solution, device and storage medium

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Huawei, HiSilicon.R1-1812206 "Sidelink physical layer structure for NR V2X".3GPP tsg_ran\wg1_rl1.2018,(第tsgr1_95期),全文. *
Huawei.R1-1903375 "Feature lead summary for AI 7.2.4.3: Uu-based sidelink resource allocation/configuration".3GPP tsg_ran\wg1_rl1.2019,(第tsgr1_96期),全文. *

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